CN102230731B - Chimney structure for tunnel kiln for sintering electronic products - Google Patents
Chimney structure for tunnel kiln for sintering electronic products Download PDFInfo
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- CN102230731B CN102230731B CN2011101894830A CN201110189483A CN102230731B CN 102230731 B CN102230731 B CN 102230731B CN 2011101894830 A CN2011101894830 A CN 2011101894830A CN 201110189483 A CN201110189483 A CN 201110189483A CN 102230731 B CN102230731 B CN 102230731B
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Abstract
The invention provides a chimney structure for a tunnel kiln for sintering electronic products, belonging to the technical field of kilns for sintering electronic products. The chimney structure comprises a chimney body and a heating mechanism matched with the chimney body, wherein the heating mechanism comprises an outer sleeve, electric heating wires, plural of heating blocks and an inner sleeve; the outer sleeve is arranged in the chimney body; the inner sleeve is arranged in the outer sleeve; the plural of electric heating blocks are arranged between the outer wall of the inner sleeve and the inner wall of the outer sleeve and form a cylindrical body around a separate cavity between the outer wall of the inner sleeve and the inner wall of the outer sleeve; electric heating wire through holes are arranged on the electric heating blocks; the electric heating wires penetrate through the electric heating wire through holes; a pair of electric heating wire power supply connection ends of the electric heating wires are connected with a pair of power supply terminals arranged on the outer sleeve; and the pair of power supply terminals is connected with an external power supply by protruding out of the wall body of the chimney body. The chimney structure has the following advantages: the sintering efficiency is improved; the requirement for industrialized large scale production is met; the labor intensity of the workers is alleviated; and the energy is saved.
Description
Technical field
The invention belongs to electronic product burning kiln technical field, be specifically related to the chimney structure that a kind of electronic product sintering tunnel cave is used
Background technology
above mentioned electronic product is main but be not limited to following kind of giving an example: ceramic inductance substrate, ceramic dielectric substrate, LiFePO 4 powder and all kinds of use for electronic products powder, or the like.The common employing batch-type furnace that burns till of the powder body material of this electronic product and use for electronic products burns till; The strong point that the van-type stove burns till is: the colloid of from the powder body material of the electronic product that is sintered and/or use for electronic products, discharging can not turn back to electronic product and/or powder body material; Because whenever burn till once just once to the inwall cleaning of van-type stove burner hearth; The glue dirt that to concentrate and be set on the inwall is removed, and avoids when burning till because of glue dirt fusion next time and drop down dripping a quality that influences product.But employing van-type stove burns till above-mentioned electronic product or there is following technical problem in the use for electronic products powder body material: the one, burn till inefficiency, and be difficult to satisfy the industrial amplification production requirement; The 2nd, working strength of workers is big, because whenever burn till once, needs by the workman van-type stove to be carried out aforesaid cleaning; The 3rd, be unfavorable for energy savings, because when the van-type stove is cleaned, need in advance it to be cooled to normal temperature.
adopt tunnel cave to burn till; Then can remedy aforesaid 3 technical problems; But, because the jelly of from electronic product or use for electronic products powder body material, overflowing is at the inwall that in the process that the chimney of tunnel cave is discharged, can be attached to chimney with flue gas, when tunnel cave is in when quitting work state; So before the jelly attached to inner wall of stack solidified because of cooling, and stiffly formed the glue dirt at inner wall of stack.And when tunnel cave was launched once more, then molten drop took place in the glue dirt under the effect of high-temperature flue gas, and the jelly of molten drop can drop down with inner wall of stack and drop down onto the electronic product that is arranged in burner hearth or the powder body material of use for electronic products, pollutes, and even causes product rejection.
can be known through above-mentioned explanation to tunnel cave, and adopting the electronic product and the material of van-type stove sintering aforementioned type is the selection that industry is done something against one's will, only if the chimney structure of tunnel cave is improved, the chimney of stopping tunnel cave drips glue.Yet, in disclosed patent and non-patent literature, all be not seen in up to now tunnel cave improved and uses and avoid chimney to drip the teachings of glue.For this reason, the applicant has done actively and good try, and the technical scheme that will introduce below produces under this background
Summary of the invention
task of the present invention is to provide a kind of chimney of can stopping effectively to drip glue and use to embody to improve and burn till efficient and satisfy the chimney structure that electronic product sintering tunnel cave that the industrialization volume production required, alleviated labor strength and energy savings is used.
task of the present invention is accomplished like this; The chimney structure that a kind of electronic product sintering tunnel cave is used; Comprise a chimney body and a heating arrangements that matches with chimney body; This heating arrangements comprises outer sleeve, electrical heating wire, plural number piece heat block and inner sleeve, and outer sleeve is arranged in the said chimney body, and inner sleeve places in the outer sleeve; Plural number piece electrical heating piece is between the inwall of the outer wall of inner sleeve and outer sleeve; And the structure around the separate space formation cylinder between the inwall of the outer wall of inner sleeve and outer sleeve offers the electrical heating wire through hole on each electrical heating piece, electrical heating wire is following the electrical heating wire through hole and wearing; And the pair of electrical heater strip power connector end of electrical heating wire is connected with a pair of power-line terminal on being arranged on outer sleeve, is connected with the externally fed power supply and a pair of power-line terminal leans out the wall body of said chimney body.
are in a concrete embodiment of the present invention; The top of described inner sleeve is connected with one and draws cylindrical shell; This top of drawing cylindrical shell is sealed by valve gap; Bottom and said chimney body are fixed, and are useful on containing the breather pipe that the glue flue gas is drawn drawing to connect on the cylindrical shell.
in another concrete embodiment of the present invention, described electrical heating piece is the refractory ceramics piece.
are in another concrete embodiment of the present invention; The short transverse of described outer sleeve constitutes an outer sleeve port, on this outer sleeve port, is equipped with at least one pair of and is used for the outer sleeve port closing device that the outer sleeve port is closed.
are in another concrete embodiment of the present invention; Described outer sleeve port closing device comprises first, second holder and set bolt; First holder is fixed on said outer sleeve, and is positioned at a side of outer sleeve port, and second holder is fixed on the outer sleeve equally; And be positioned at the opposite side of outer sleeve port; Corresponding with first holder, set bolt is located on first holder and second holder, makes said outer sleeve port closed by this set bolt closes up first, second holder each other.
also have among the concrete embodiment of the present invention, are connected with one on the cylindrical shell and are used to predict the thermocouple of drawing the temperature that contains the glue flue gas in the cylinder chamber of drawing cylindrical shell described drawing.
are more of the present invention and among concrete embodiment, each constitutes the bending tooth that is used for said electrical heating piece location at interval the two ends of described outer sleeve.
are in of the present invention and then concrete embodiment; Between the inwall of described outer sleeve and described chimney body, fill out and be provided with heat-insulation layer, and heat-insulation layer also extends between the inwall of upper end of outer wall and chimney body of upper end of said inner sleeve.
of the present invention again more and among concrete embodiment, the bottom of described inner sleeve constitutes an inner sleeve mounting flange.
in again of the present invention and then concrete embodiment, constitute on the outer wall of described bottom of drawing cylindrical shell be used for said chimney body fixing draw shell flange.
technical scheme provided by the invention is after being configured on the electronic product sintering tunnel cave; To come from and contain the glue flue gas heating in the electronic product sintering tunnel cave; Make jelly along with flue gas is discharged; Therefore jelly in the glue flue gas can not occur containing returns and drops down on the powder body material that is in electronic product or use for electronic products in the sintering process that drips to the burner hearth; Both can improve and burn till efficient and satisfy the industrial amplification production requirement, and implement artificial cleaning the prior art and help to alleviate working strength of workers because of need not to resemble again, and owing to tunnel cave can realize that continuous operation helps energy savings.
Description of drawings
Fig. 1 is embodiments of the invention and application examples sketch map.
The matching chart of
Fig. 2 outer sleeve of the present invention, electrical heating wire and electrical heating piece.
Fig. 3 is an application examples sketch map of the present invention.
Fig. 4 is the cutaway view of Fig. 3.
The specific embodiment
can be expressly understood technical spirit of the present invention and beneficial effect more for the auditor that the makes Patent Office especially public; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not the restriction to the present invention program, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be regarded as technical scheme category of the present invention.
Embodiment:
Fig. 1 and Fig. 2 are asked for an interview in
; A heating arrangements 2 that has provided a chimney body 1 and matched with chimney body 1; This heating arrangements 2 comprises inside and outside cover 24,21, electrical heating wire 22 and plural number piece (also can claim one group) electrical heating piece 23; Outer sleeve 21 is arranged in the chimney body 1, and inner sleeve 24 places in the outer sleeve 21, and this inner sleeve 24 is fixing at position and kiln body 4 corresponding to the exhaust smoke outlet 42 of the following kiln body 4 that also will mention.The outer wall of the bottom of inner sleeve 24 constitutes an inner sleeve mounting flange 242; This inner sleeve mounting flange 242 is fixing with kiln body 4; And it is corresponding with exhaust smoke outlet 42; The top of inner sleeve 24 connect a diameter than the diameter of inner sleeve 24 little draw cylindrical shell 241; Valve gap 2411 sealings are adopted at this top of drawing cylindrical shell 241, and have connected a breather pipe 2412 at the sidepiece of drawing cylindrical shell 241, and this breather pipe 2412 is with following that also will describe in detail and drawn and collected gluing mechanism 5 and be connected by Fig. 1 and Fig. 2 glue flue gas that contains that shows of knowing clearly.For the ease of examining the knowledge flue-gas temperature, therefore also connected thermocouple 2413 (Fig. 3 shows) on the cylindrical shell 241 drawing, plural number piece electrical heating piece 23 and is in the bottom of separate space in inner and outer sleeves 24, the separate space reserved between 21.That is to say that electrical heating piece 23 is enclosed to form the structure of cylinder around the separate space between the inwall of the outer wall of inner sleeve 24 and outer sleeve 21.Electrical heating piece 23 is just as the wall body structure of the cylinder in the building field; On each electrical heating piece 23, laterally offer the electrical heating wire through hole 231 that the heater strip 22 that is used to supply power passes; Electrical heating wire 22 following (along) electrical heating wire through hole 231 wears with the form of spiraling; And to be pair of electrical heater strip link be connected with a pair of power-line terminal 211 on being arranged on outer sleeve 21 end points at the two ends of electrical heating wire 22 (end), is connected with the externally fed power supply and a pair of power-line terminal 411 leans out the wall body of aforesaid chimney body 1.Can fill heat-insulation layer 213 in the space between the inwall of the outer sleeve 21 of heating arrangements 2 and chimney body 1, and heat-insulation layer 213 extends in the space between the inwall on top of outer wall and chimney body 1 on top of inner sleeve 24.The aforesaid cylindrical shell 241 of drawing is fixing with chimney body 1 through drawing shell flange 2414.
are according to general knowledge; Need there be outer sleeve port 212 in outer sleeve 21; If because lack this outer sleeve port 212, so aforesaidly by wearing of electrical heating wire 22 electrical heating piece 23 is connected as a whole cylindrical body and be difficult to and outer sleeve 21 good fit, be prone to the phenomenon that gets loose; Therefore after electrical heating wire 22 and electrical heating piece 23 wear completion and place in the outer sleeve 21; Pass through outer sleeve port closing device 3 again with outer sleeve port 212 closures, make port 232 closures of electrical heating piece 23 simultaneously, thereby make plural number piece electrical heating piece 23 and outer sleeve 21 form complete cylindrical body.Aforesaid electrical heating piece 23 is the refractory ceramics piece, is in electrical heating piece 23 topmost and foot and is limited in the bending tooth 214 (also can claim positioning tooth) at outer cylinder body 21 two ends.
emphasis is seen Fig. 2; Aforesaid outer sleeve port closing device 3 has a pair of; Comprise that respectively first, second holder 31,32 and set bolt 33, the first holders 31 are fixing with outer sleeve 21, and be positioned at a side (left side shown in Figure 2) of outer sleeve port 212; Fix with outer sleeve 21 and second holder 32 is same; And be positioned at the opposite side (right side shown in Figure 2) of outer sleeve port 212, first, second holder 31,32 corresponds to each other, and on first holder 31, offers first bolt hole 311; And on second holder 32, offer second bolt hole 321; First, second bolt hole 311,321 corresponds to each other, and set bolt 33 limits with nut 331 through second bolt hole 321 and after passing first bolt hole 311, and perhaps set bolt 33 limits with nut 331 after passing first, second bolt hole 311,321 successively again.Along with turn nut 331, under the effect of set bolt 33, first, second holder 31,32 is closed up each other, the outer sleeve port 212 that finally makes sleeve 21 closes up together with the port 232 of the electrical heating piece 23 that is equipped with electrical heating wire 22.
Application examples:
are asked for an interview Fig. 3 and Fig. 4 and are still combined Fig. 1 and Fig. 2, and the chimney structure that is made up of chimney body 1 and the heating arrangements 2 that matches with chimney body 1 is provided on the electronic product sintering tunnel cave.
are in Fig. 3 and Fig. 4; Provided one and do not needed kiln body support frame 6 particular determination and that be preferably frame structure at length direction; On kiln body support frame 6 and along the top (also can claim the top) of the length direction of kiln body support frame 6, be provided with kiln body 4; Kiln body 4 has burner hearth 41; The electronic product that is used for sintering for example ceramic inductance substrate, ceramic dielectric substrate, LiFePO 4 powder or other powder that similarly is used to make electronic product (electronic devices and components) container of packing into is for example inserted burner hearth 41 and under the effect of top-pushing mechanism that is equipped with separately or haulage gear, crucible or carrier is low got into until drawing from the port of export from the arrival end of burner hearth 41 behind crucible or the carrier.In sintering process, the exhaust smoke outlet 42 that the glue flue gas offers from kiln body 4 tops at interval that contains that produces in the burner hearth 41 is discharged.Why contain jelly in the flue gas; Be because electronic product for example exist successively in the production of ceramic inductance substrate get the raw materials ready, series of processes such as batching, batch mixing, pressed compact, sintering; And needs use the material such as EVA (ethylene-vinyl acetate copolymer), solvent and/or adhesive in the batch mixing process; Thereby in high-temperature sintering process, jelly and/or solvent are just overflowed, and efflux from exhaust smoke outlet 42.
emphasis is seen Fig. 1 and Fig. 2; Once the glue flue gas of mentioning above that contains is drawn collection gluing mechanism 5 and is comprised motor 51, blower fan 52, collection fume pipe 53 and jelly gathering-device 54; Motor 51 connects (genus common practise) with blower fan 52 transmissions; And be fixed on the top of fan supporter 521 by blower fan 52 together with motor 51, and the bottom supporting of fan supporter 521 is on the terrace of field of employment, certainly; Can fan supporter 521 and aforesaid kiln body support frame 6 be fixed fully; Collect fume pipe 53 and lay, and preferably corresponding to the top side portion (the inclined to one side side in the top of kiln body 4) of kiln body 4 along the length direction of kiln body 4, use avoid and aforesaid chimney body 1 between produce interference.One end (left end of Fig. 1, location status shown in Figure 2) of collection fume pipe 53 connects with blower fan 52 air inlets 522, and the other end end of collection fume pipe 53 is by capping 534 sealings (Fig. 4 shows).The fan outlet of aforementioned blower fan 52 is connected (not shown) with the pipeline that connects separately.The whole fume pipe 53 that collects is through fixing with kiln body 4 or with kiln body support frame 6 fixing support of ducts 533.Promptly collect on the fume pipe 53 towards a side of jelly gathering-device 54 at collection fume pipe 53 and to receive interface 532 that a quantity equates with the quantity of jelly gathering-device 54 and that communicate with the collection fume pipe tube chamber 531 that collects fume pipe 53 with jelly gathering-device 54 corresponding positions; End at interface 532 constitutes a flange 5321, and whole jelly gathering-device 54 is fixedly connected with flange 5321 with cantilever position.
preferred jelly gathering-device 54 comprises glue flue gas cylinder 541, collection glue jar 542 and valve 543; The upper end of glue flue gas cylinder 541 promptly constitutes a glue flue gas cylinder adapting flange 5411 towards an end of flange 5321; This glue flue gas cylinder adapting flange 5411 connects (adding sealing gasket) with 5321 sealings of aforementioned interface flange, and the lower end of glue flue gas cylinder 541 promptly is connected with the arrival end of valve 543 (upper end of valve 543) flange towards an end of valve 543.Collection glue jar 542 towards the end (illustrated upper end) of valve 543 constitute one have a screw thread connector 5421, the port of export screw thread that will collect glue jar 542 and valve 543 by this connector 5421 with screw thread connects valve 543 preferred use Ball valves.Aforesaid breather pipe 2412 is connected with glue flue gas cylinder 541.
when kiln body 4 was in running order, containing the glue flue gas, to draw the motor 51 of collection gluing mechanism 5 also in running order, the electrical heating wire 21 energising heating of heating arrangements 2; The glue flue gas that contains that comes from burner hearth 41 gets into chimney body 1 through exhaust smoke outlet 42; Specifically: cylindrical shell 241 is drawn in inner sleeve 24 entering through heating arrangements 2, and owing to the collection fume pipe tube chamber 531 that collects fume pipe 53 is in negative pressure state, the glue flue gases that contain of therefore drawing in the cylindrical shell 241 collect fume pipe tube chambers 531 through breather pipe 2412 entering; And then the glue flue gas cylinder 541 of entering jelly gathering-device 54; Because glue is different with the proportion of gas, and under the situation that temperature reduces, flue gas gets into collection fume pipe tube chamber 531; The jelly then valve under opening 543 drops down and drips, and gets in the collection glue jar 542.
can be known by above-mentioned explanation, and technical scheme provided by the invention has overcome 3 shortcomings in the prior art, has objectively reached goal of the invention, has embodied the described technique effect of applicant, thereby to can yet be regarded as be a ultimate attainment technical scheme.Generally, adopt chimney structure of the present invention, can make the electronic product and the electronic material that can only adopt van-type stove sintering in the prior art successfully utilize tunnel kiln sintering
Claims (10)
1. chimney structure that electronic product sintering tunnel cave is used; It is characterized in that comprising a chimney body (1) and a heating arrangements (2) that matches with chimney body (1); This heating arrangements (2) comprises outer sleeve (21), electrical heating wire (22), plural number piece electrical heating piece (23) and inner sleeve (24); Outer sleeve (21) is arranged in the said chimney body (1); Inner sleeve (24) places in the outer sleeve (21); Plural number piece electrical heating piece (23) is positioned between the inwall of outer wall and outer sleeve (21) of inner sleeve (24); And the structure around the separate space formation cylinder between the inwall of the outer wall of inner sleeve (24) and outer sleeve (21) offers electrical heating wire through hole (231) on each electrical heating piece (23), electrical heating wire (22) is following electrical heating wire through hole (231) and wearing; And the pair of electrical heater strip power connector end of electrical heating wire (22) is connected with a pair of power-line terminal (211) on being arranged on outer sleeve (21), is connected with the externally fed power supply and a pair of power-line terminal (211) leans out the wall body of said chimney body (1).
2. the chimney structure that electronic product sintering tunnel cave according to claim 1 is used; The top that it is characterized in that described inner sleeve (24) is connected with one and draws cylindrical shell (241); This top of drawing cylindrical shell (241) is sealed by valve gap (2411); Bottom and said chimney body (1) are fixing, and are useful on containing the breather pipe (2412) that the glue flue gas is drawn drawing to connect on the cylindrical shell (241).
3. the chimney structure that electronic product sintering tunnel cave according to claim 1 is used is characterized in that described electrical heating piece (23) is the refractory ceramics piece.
4. the chimney structure that electronic product sintering tunnel cave according to claim 1 is used; The short transverse that it is characterized in that described outer sleeve (21) constitutes an outer sleeve port (212), on this outer sleeve port (212), is equipped with at least one pair of and is used for the outer sleeve port closing device (3) that outer sleeve port (212) is closed.
5. the chimney structure that electronic product sintering tunnel cave according to claim 4 is used; It is characterized in that described outer sleeve port closing device (3) comprises first, second holder (31,32) and set bolt (33); First holder (31) is fixed on said outer sleeve (21); And be positioned at a side of outer sleeve port (212); Second holder (22) is fixed on the outer sleeve (21) equally, and is positioned at the opposite side of outer sleeve port (212), and is corresponding with first holder (31); Set bolt (33) is located on first holder (31) and second holder (32), makes said outer sleeve port (212) closure by this set bolt (33) closes up first, second holder (31,32) each other.
6. the chimney structure that electronic product sintering tunnel cave according to claim 2 is used is characterized in that being connected with one on the cylindrical shell (241) and being used to predict the thermocouple (2413) of drawing the temperature that contains the glue flue gas in the cylinder chamber of drawing cylindrical shell (241) described drawing.
7. the chimney structure that electronic product sintering tunnel cave according to claim 1 is used is characterized in that each interval, two ends of described outer sleeve (21) constitutes the bending tooth (214) that is used for said electrical heating piece (23) location.
8. the chimney structure that electronic product sintering tunnel cave according to claim 1 is used; It is characterized in that between the inwall of described outer sleeve (21) and described chimney body (1), filling out and be provided with heat-insulation layer (213), and heat-insulation layer (213) also extends between the inwall of upper end of outer wall and chimney body (1) of upper end of said inner sleeve (24).
9. the chimney structure of using according to claim 1 or 2 or 8 described electronic product sintering tunnel caves is characterized in that the bottom of described inner sleeve (24) constitutes an inner sleeve mounting flange (242).
10. the chimney structure that electronic product sintering tunnel cave according to claim 2 is used, it is characterized in that constituting on the outer wall of described bottom of drawing cylindrical shell (241) be used for said chimney body (1) fixing draw shell flange (2414).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101894830A CN102230731B (en) | 2011-07-07 | 2011-07-07 | Chimney structure for tunnel kiln for sintering electronic products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101894830A CN102230731B (en) | 2011-07-07 | 2011-07-07 | Chimney structure for tunnel kiln for sintering electronic products |
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| Publication Number | Publication Date |
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| CN102230731A CN102230731A (en) | 2011-11-02 |
| CN102230731B true CN102230731B (en) | 2012-11-21 |
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| CN2011101894830A Active CN102230731B (en) | 2011-07-07 | 2011-07-07 | Chimney structure for tunnel kiln for sintering electronic products |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2220049Y (en) * | 1995-04-16 | 1996-02-14 | 烟台机电实业总公司 | Quartz vibrator glass end-sealing sintering furnace |
| US6199491B1 (en) * | 2000-05-12 | 2001-03-13 | Kun-Cheng Wu | Refuse incinerating oven |
| JP2001328870A (en) * | 2000-05-19 | 2001-11-27 | Taiyo Yuden Co Ltd | Method for burning ceramic, tunnel type burning furnace, method and apparatus for procuding ceramic electronic part and housing unit for burning ceramic electronic part |
| JP4696531B2 (en) * | 2004-11-08 | 2011-06-08 | 株式会社村田製作所 | Manufacturing method and manufacturing apparatus for ceramic electronic component |
| CN101197401B (en) * | 2007-12-28 | 2011-06-08 | 常州亿晶光电科技有限公司 | Continuous curing oven of ultra-large crystalline silicon solar cell components |
| CN201476536U (en) * | 2009-03-31 | 2010-05-19 | 福建闽航电子有限公司 | Sintering furnace |
| CN101798229B (en) * | 2009-12-10 | 2013-05-22 | 洛阳神佳窑业有限公司 | Full fiber ceramic body glue discharging method and kiln |
| CN202182622U (en) * | 2011-07-07 | 2012-04-04 | 苏州博涛机电设备有限公司 | Chimney structure for electronic product sintering tunnel kiln |
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Address after: 215562 No. 18, Fuli Road, Xinzhuang Town, Changshu City, Suzhou City, Jiangsu Province Patentee after: Jiangsu Botao Intelligent Thermal Engineering Co.,Ltd. Address before: 215562 Xin Zhuang Zhen Yang Yuan Zhu Jia Qiao Cun, Changshu City, Suzhou City, Jiangsu Province Patentee before: SUZHOU BOTAO EQUIPMENT Co.,Ltd. |
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